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See detailNumerical Modeling of Tribological Devices Using Various Contact Algorithms
CHABRAND, P.; DUBOIS, F.; GRAILLET, D. et al

in Proceedings of “NUMIFORM’98, Simulation of Materials Processing: Theory, Methods and Applications (1998, June)

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See detailNumerical Modelisation of Contact with friction phenomena by the FEM
Charlier, Robert ULg

in Proc. of the Euromech Colloquium 248: Non Linear Soil-Structure Interaction (1989, April)

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See detailNumerical Modelisation of Contact with Friction Phenomena by the Finite Element Method
Charlier, Robert ULg; Habraken, Anne ULg

in Computers & Geotechnics (1990), 9(n°1&2), 59-72

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See detailNumerical modelling and experimental validation of steel deep drawing processes - Part I. Material characterization
Garcia, Claudio; Celentano, Diego; Flores, F. et al

in Journal of Materials Processing Technology (2006), 172(3), 451-460

This work presents an experimental characterization of the mechanical behaviour of the EK4 deep drawing steel. The experimental procedure encompasses spectrometry, rnetalography, tension testing and ... [more ▼]

This work presents an experimental characterization of the mechanical behaviour of the EK4 deep drawing steel. The experimental procedure encompasses spectrometry, rnetalography, tension testing and hardness measurements. Special attention is devoted to the derivation of the elastic and plastic parameters involved in the assumed constitutive model based on the anisotropic Hill-48 yield criterion. The simulation of the deformation process during the whole tensile test is subsequently performed with the aim of assessing the adequateness of the proposed methodology. It should be mentioned that the material parameters obtained with this procedure are the basic data for the modelling and experimental validation of different deep drawing applications presented in Part II of this work. (c) 2005 Elsevier B.V. All rights reserved. [less ▲]

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See detailNumerical modelling and experimental validation of steel deep drawing processes - Part II. Applications
Garcia, Claudio; Celentano, Diego; Flores, Fernando et al

in Journal of Materials Processing Technology (2006), 172(3), 461-471

This paper presents the modelling and experimental validation of three different deep drawing applications: the Erichsen test, a cylindrical cup test and an industrial sheet metal forming process. The ... [more ▼]

This paper presents the modelling and experimental validation of three different deep drawing applications: the Erichsen test, a cylindrical cup test and an industrial sheet metal forming process. The sheet forrning material considered in the study is the EK4 steel characterized in Part I of this work. A finite element analysis of the deformation process is performed with a large strain hyperelastic shell formulation including the Hill-48 associate plasticity model. The experimental validation of the results provided by the simulation encompasses the punch force evolution together with the in-plane principal deformations and thickness distributions of the final deformed part. (c) 2005 Elsevier B.V. All rights reserved. [less ▲]

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See detailNumerical modelling and seasonal investigations of the Northwest African Upwelling
Elmoussaoui, Abdellali; Djenidi, Salim ULg; Beckers, Jean-Marie ULg

Conference (2003)

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See detailNumerical modelling and theoretical analysis of geometrically-controlled flow instabilities in rectangular basins
Dewals, Benjamin ULg; Erpicum, Sébastien ULg; Pirotton, Michel ULg

in Proceedings of the 4th International Conference on Advanced Computational Methods in Engineering (2008)

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See detailNumerical modelling in TIMODAZ: developments and achievements
Charlier, Robert ULg; Collin, Frédéric ULg; Levasseur, Séverine ULg

in Post-TIMODAZ International Workshop THM effects in clay host rocks for radioactive waste repositories (2012)

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See detailNumerical modelling of a rock cutting process
Wang, X. C.; Charlier, Robert ULg; Pierry, J.

in Proc. of the 8th Int. Congress on Rock Mechanics (1995, September)

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See detailNumerical modelling of a single storey industrial building at elevated temperature - comparison between the 2D and 3D analyses
de Souza Junior, Valdenir; Creus, G. J.; Franssen, Jean-Marc ULg

in Proceedings of the First South-American Congress on Computational Mechanics (2002)

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See detailNumerical modelling of an in situ ventilation test in Callovo-Oxfordian claystone
Pardoen, Benoît ULg; Talandier, J.; Charlier, Robert ULg et al

Poster (2012, October)

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See detailNumerical modelling of axially loaded stainless steel members under fire conditions
Franssen, Jean-Marc ULg; Lopes, N.; Vila Real, P. M. M. et al

in Camotim, D. (Ed.) Stability and ductility of steel structures (2006)

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See detailNumerical modelling of coupled mechanics and gas transfer
Gerard, Pierre ULg; Charlier, Robert ULg; Barnichon, Jean-Dominique et al

Poster (2007)

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See detailNumerical Modelling of Coupled Mechanics and Gas Transfer around Radioactive Waste in Long-Term Storage
Gerard, Pierre ULg; Charlier, Robert ULg; Barnichon, Jean-Dominique et al

in Journal of Theoretical and Applied Mechanics (2008), 38(1-2), 25-44

During long-term storage of radioactive waste, steel containers will be corroded. This process leads to hydrogen production. A boundary value problem has been proposed to study the numerical modelling of ... [more ▼]

During long-term storage of radioactive waste, steel containers will be corroded. This process leads to hydrogen production. A boundary value problem has been proposed to study the numerical modelling of the gas migration and its coupling with the mechanical strains and stresses, under isothermal conditions. Biphasic fluid transfer model (considering water, vapour, gaseous hydrogen and dissolved hydrogen) is defined. A 2D axisymmetric case with simplified geometry close to waste disposal in clay is modelled. Fluid transport problem is first resolved. Then, coupled mechanics and fluid transfers are modelled to determine the coupling effects. [less ▲]

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See detailNumerical modelling of coupled poromechanics processes
Charlier, Robert ULg; Laloui, Liesse; Collin, Frédéric ULg

in Revue Européenne de Génie Civil (2006), 10(6-7), 669-702

This paper is the basis for a course dedicated to geomechanics for energy production. A number of different coupling are discussed, with respectively the fluid flow (saturated and unsaturated) and the ... [more ▼]

This paper is the basis for a course dedicated to geomechanics for energy production. A number of different coupling are discussed, with respectively the fluid flow (saturated and unsaturated) and the thermal transfers in deformable porous media. Eventually some aspects on the numerical modelling with the finite element method are discussed. [less ▲]

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See detailNumerical modelling of coupled transient phenomena
Charlier, Robert ULg; Radu, Jean-Pol ULg; Collin, Frédéric ULg

in Revue Française de Génie Civil (2001), 5(6), 719-743

The basic phenomena involved in thermo-hydro-mechanical processes in geomaterials have been described in the 1st chapter. The equations describing these phenomena are non-linear differential equations ... [more ▼]

The basic phenomena involved in thermo-hydro-mechanical processes in geomaterials have been described in the 1st chapter. The equations describing these phenomena are non-linear differential equations. Their solution can generally only be approximated thanks to numerical methods. This is the main subject of the present chapter. First the type of problems and the set of equations to be solved will be shortly recalled. Emphasis will be given on the non-linear contributions. In a second section, the mostly developed numerical method, i.e. the finite difference and the finite element methods will be discussed under the light of the problems to be treated. The iterative techniques allowing the solution of non linear equations will be described. A third section will be dedicated to the coupling terms and to their modelling. The question that rises then is How to model efficiently problems, which may differ highly from, the point of view of the time and length scales? [less ▲]

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See detailNumerical modelling of ground temperature evolution and soil subsidence as a result of underground coal fire
Liu, XF; Collin, Frédéric ULg; Buzzi, O et al

in Australian Geomechanics Journal (2012), 47(4), 27-32

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See detailNumerical modelling of lateral-torsional buckling of steel I-beams under fire conditions - Comparison with Eurocode 3
Vila Real, Paulo M. M.; Franssen, Jean-Marc ULg

in Journal of Fire Protection Engineering (2001), 11(2), 112-128

A geometrically and materially non-linear finite element program, i.e., a general model, has been used to determine the lateral-torsional resistance of steel I-beams under fire conditions, according to ... [more ▼]

A geometrically and materially non-linear finite element program, i.e., a general model, has been used to determine the lateral-torsional resistance of steel I-beams under fire conditions, according to the same material properties of Eurocode 3, Part 1-2. Two yield strengths, one cross section, one type of load and four different time exposures to the ISO 834 standard fire have been considered. The numerical results have been compared to the results of the simple model presented in Eurocode 3, Part 1-2. When compared with the general model, this simple model leads to a safety level that depends on the slenderness of the beam, being unsafe for intermediate non-dimensional slenderness. A new proposal has been made for a simple model that ensures a conservative result when compared to the general model. [less ▲]

Detailed reference viewed: 40 (1 ULg)